UVCS/SOHO: The First Two Years

The SOHO Ultraviolet Coronagraph Spectrometer (UVCS/SOHO) has observed the extended solar corona between 1 and 10 R· for more than two years. We review spectroscopic and polarimetric measurements made in coronal holes, equatorial streamers, and coronal mass ejections, as well as selected non-solar targets. UVCS/SOHO has provided a great amount of empirical information about the physical processes that heat and accelerate the solar wind, and about detailed coronal structure and evolution. This revised version was published online in June 2006 with corrections to the Cover Date.     

Ly-α Observation of a Coronal Streamer with UVCS/SOHO

In this paper we discuss some characteristics of an equatorial streamer observed by UVCS in July 1997. We determine the height distribution of the Ly-α total intensity and of its width. We focus our attention, in particular, on the time variability of these parameters. This revised version was published online in June 2006 with corrections to the Cover Date.